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<div id="overview"><a href="../../../../../../../../api/org/jboss/netty/handler/codec/http/websocketx/WebSocketClientHandshaker00.html">View Javadoc</a></div><pre>

<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> * Copyright 2012 The Netty Project</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_comment"> * The Netty Project licenses this file to you under the Apache License,</em>
<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_comment"> * version 2.0 (the "License"); you may not use this file except in compliance</em>
<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_comment"> * with the License. You may obtain a copy of the License at:</em>
<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_comment"> *   <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT</em>
<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_comment"> * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the</em>
<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_comment"> * License for the specific language governing permissions and limitations</em>
<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_comment"> * under the License.</em>
<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="16" href="#16">16</a>  <strong class="jxr_keyword">package</strong> org.jboss.netty.handler.codec.http.websocketx;
<a class="jxr_linenumber" name="17" href="#17">17</a>  
<a class="jxr_linenumber" name="18" href="#18">18</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.buffer.ChannelBuffer;
<a class="jxr_linenumber" name="19" href="#19">19</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.buffer.ChannelBuffers;
<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.Channel;
<a class="jxr_linenumber" name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelFuture;
<a class="jxr_linenumber" name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelFutureListener;
<a class="jxr_linenumber" name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelPipeline;
<a class="jxr_linenumber" name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.DefaultChannelFuture;
<a class="jxr_linenumber" name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.DefaultHttpRequest;
<a class="jxr_linenumber" name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpHeaders.Names;
<a class="jxr_linenumber" name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpHeaders.Values;
<a class="jxr_linenumber" name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpMethod;
<a class="jxr_linenumber" name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpRequest;
<a class="jxr_linenumber" name="30" href="#30">30</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpRequestEncoder;
<a class="jxr_linenumber" name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpResponse;
<a class="jxr_linenumber" name="32" href="#32">32</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpResponseDecoder;
<a class="jxr_linenumber" name="33" href="#33">33</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpResponseStatus;
<a class="jxr_linenumber" name="34" href="#34">34</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpVersion;
<a class="jxr_linenumber" name="35" href="#35">35</a>  
<a class="jxr_linenumber" name="36" href="#36">36</a>  <strong class="jxr_keyword">import</strong> java.net.URI;
<a class="jxr_linenumber" name="37" href="#37">37</a>  <strong class="jxr_keyword">import</strong> java.nio.ByteBuffer;
<a class="jxr_linenumber" name="38" href="#38">38</a>  <strong class="jxr_keyword">import</strong> java.util.Map;
<a class="jxr_linenumber" name="39" href="#39">39</a>  
<a class="jxr_linenumber" name="40" href="#40">40</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="41" href="#41">41</a>  <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="42" href="#42">42</a>  <em class="jxr_javadoccomment"> * Performs client side opening and closing handshakes for web socket specification version &lt;a</em>
<a class="jxr_linenumber" name="43" href="#43">43</a>  <em class="jxr_javadoccomment"> * href="<a href="http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-00" target="alexandria_uri">http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-00</a>" &gt;draft-ietf-hybi-thewebsocketprotocol-</em>
<a class="jxr_linenumber" name="44" href="#44">44</a>  <em class="jxr_javadoccomment"> * 00&lt;/a&gt;</em>
<a class="jxr_linenumber" name="45" href="#45">45</a>  <em class="jxr_javadoccomment"> * &lt;/p&gt;</em>
<a class="jxr_linenumber" name="46" href="#46">46</a>  <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="47" href="#47">47</a>  <em class="jxr_javadoccomment"> * A very large portion of this code was taken from the Netty 3.2 HTTP example.</em>
<a class="jxr_linenumber" name="48" href="#48">48</a>  <em class="jxr_javadoccomment"> * &lt;/p&gt;</em>
<a class="jxr_linenumber" name="49" href="#49">49</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="50" href="#50">50</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> WebSocketClientHandshaker00 <strong class="jxr_keyword">extends</strong> <a href="../../../../../../../org/jboss/netty/handler/codec/http/websocketx/WebSocketClientHandshaker.html">WebSocketClientHandshaker</a> {
<a class="jxr_linenumber" name="51" href="#51">51</a>  
<a class="jxr_linenumber" name="52" href="#52">52</a>      <strong class="jxr_keyword">private</strong> <a href="../../../../../../../org/jboss/netty/buffer/ChannelBuffer.html">ChannelBuffer</a> expectedChallengeResponseBytes;
<a class="jxr_linenumber" name="53" href="#53">53</a>  
<a class="jxr_linenumber" name="54" href="#54">54</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="55" href="#55">55</a>  <em class="jxr_javadoccomment">     * Constructor with default values</em>
<a class="jxr_linenumber" name="56" href="#56">56</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="57" href="#57">57</a>  <em class="jxr_javadoccomment">     * @param webSocketURL</em>
<a class="jxr_linenumber" name="58" href="#58">58</a>  <em class="jxr_javadoccomment">     *            URL for web socket communications. e.g "ws://myhost.com/mypath". Subsequent web socket frames will be</em>
<a class="jxr_linenumber" name="59" href="#59">59</a>  <em class="jxr_javadoccomment">     *            sent to this URL.</em>
<a class="jxr_linenumber" name="60" href="#60">60</a>  <em class="jxr_javadoccomment">     * @param version</em>
<a class="jxr_linenumber" name="61" href="#61">61</a>  <em class="jxr_javadoccomment">     *            Version of web socket specification to use to connect to the server</em>
<a class="jxr_linenumber" name="62" href="#62">62</a>  <em class="jxr_javadoccomment">     * @param subprotocol</em>
<a class="jxr_linenumber" name="63" href="#63">63</a>  <em class="jxr_javadoccomment">     *            Sub protocol request sent to the server.</em>
<a class="jxr_linenumber" name="64" href="#64">64</a>  <em class="jxr_javadoccomment">     * @param customHeaders</em>
<a class="jxr_linenumber" name="65" href="#65">65</a>  <em class="jxr_javadoccomment">     *            Map of custom headers to add to the client request</em>
<a class="jxr_linenumber" name="66" href="#66">66</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="67" href="#67">67</a>      <strong class="jxr_keyword">public</strong> WebSocketClientHandshaker00(URI webSocketURL, <a href="../../../../../../../org/jboss/netty/handler/codec/http/websocketx/WebSocketVersion.html">WebSocketVersion</a> version, String subprotocol,
<a class="jxr_linenumber" name="68" href="#68">68</a>              Map&lt;String, String&gt; customHeaders) {
<a class="jxr_linenumber" name="69" href="#69">69</a>          <strong class="jxr_keyword">this</strong>(webSocketURL, version, subprotocol, customHeaders, Long.MAX_VALUE);
<a class="jxr_linenumber" name="70" href="#70">70</a>      }
<a class="jxr_linenumber" name="71" href="#71">71</a>  
<a class="jxr_linenumber" name="72" href="#72">72</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="73" href="#73">73</a>  <em class="jxr_javadoccomment">     * Constructor</em>
<a class="jxr_linenumber" name="74" href="#74">74</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="75" href="#75">75</a>  <em class="jxr_javadoccomment">     * @param webSocketURL</em>
<a class="jxr_linenumber" name="76" href="#76">76</a>  <em class="jxr_javadoccomment">     *            URL for web socket communications. e.g "ws://myhost.com/mypath". Subsequent web socket frames will be</em>
<a class="jxr_linenumber" name="77" href="#77">77</a>  <em class="jxr_javadoccomment">     *            sent to this URL.</em>
<a class="jxr_linenumber" name="78" href="#78">78</a>  <em class="jxr_javadoccomment">     * @param version</em>
<a class="jxr_linenumber" name="79" href="#79">79</a>  <em class="jxr_javadoccomment">     *            Version of web socket specification to use to connect to the server</em>
<a class="jxr_linenumber" name="80" href="#80">80</a>  <em class="jxr_javadoccomment">     * @param subprotocol</em>
<a class="jxr_linenumber" name="81" href="#81">81</a>  <em class="jxr_javadoccomment">     *            Sub protocol request sent to the server.</em>
<a class="jxr_linenumber" name="82" href="#82">82</a>  <em class="jxr_javadoccomment">     * @param customHeaders</em>
<a class="jxr_linenumber" name="83" href="#83">83</a>  <em class="jxr_javadoccomment">     *            Map of custom headers to add to the client request</em>
<a class="jxr_linenumber" name="84" href="#84">84</a>  <em class="jxr_javadoccomment">     * @param maxFramePayloadLength</em>
<a class="jxr_linenumber" name="85" href="#85">85</a>  <em class="jxr_javadoccomment">     *            Maximum length of a frame's payload</em>
<a class="jxr_linenumber" name="86" href="#86">86</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="87" href="#87">87</a>      <strong class="jxr_keyword">public</strong> WebSocketClientHandshaker00(URI webSocketURL, <a href="../../../../../../../org/jboss/netty/handler/codec/http/websocketx/WebSocketVersion.html">WebSocketVersion</a> version, String subprotocol,
<a class="jxr_linenumber" name="88" href="#88">88</a>              Map&lt;String, String&gt; customHeaders, <strong class="jxr_keyword">long</strong> maxFramePayloadLength) {
<a class="jxr_linenumber" name="89" href="#89">89</a>          <strong class="jxr_keyword">super</strong>(webSocketURL, version, subprotocol, customHeaders, maxFramePayloadLength);
<a class="jxr_linenumber" name="90" href="#90">90</a>      }
<a class="jxr_linenumber" name="91" href="#91">91</a>  
<a class="jxr_linenumber" name="92" href="#92">92</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="93" href="#93">93</a>  <em class="jxr_javadoccomment">     * &lt;p&gt;</em>
<a class="jxr_linenumber" name="94" href="#94">94</a>  <em class="jxr_javadoccomment">     * Sends the opening request to the server:</em>
<a class="jxr_linenumber" name="95" href="#95">95</a>  <em class="jxr_javadoccomment">     * &lt;/p&gt;</em>
<a class="jxr_linenumber" name="96" href="#96">96</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="97" href="#97">97</a>  <em class="jxr_javadoccomment">     * &lt;pre&gt;</em>
<a class="jxr_linenumber" name="98" href="#98">98</a>  <em class="jxr_javadoccomment">     * GET /demo HTTP/1.1</em>
<a class="jxr_linenumber" name="99" href="#99">99</a>  <em class="jxr_javadoccomment">     * Upgrade: WebSocket</em>
<a class="jxr_linenumber" name="100" href="#100">100</a> <em class="jxr_javadoccomment">     * Connection: Upgrade</em>
<a class="jxr_linenumber" name="101" href="#101">101</a> <em class="jxr_javadoccomment">     * Host: example.com</em>
<a class="jxr_linenumber" name="102" href="#102">102</a> <em class="jxr_javadoccomment">     * Origin: <a href="http://example.com" target="alexandria_uri">http://example.com</a></em>
<a class="jxr_linenumber" name="103" href="#103">103</a> <em class="jxr_javadoccomment">     * Sec-WebSocket-Key1: 4 @1  46546xW%0l 1 5</em>
<a class="jxr_linenumber" name="104" href="#104">104</a> <em class="jxr_javadoccomment">     * Sec-WebSocket-Key2: 12998 5 Y3 1  .P00</em>
<a class="jxr_linenumber" name="105" href="#105">105</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="106" href="#106">106</a> <em class="jxr_javadoccomment">     * ^n:ds[4U</em>
<a class="jxr_linenumber" name="107" href="#107">107</a> <em class="jxr_javadoccomment">     * &lt;/pre&gt;</em>
<a class="jxr_linenumber" name="108" href="#108">108</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="109" href="#109">109</a> <em class="jxr_javadoccomment">     * @param channel</em>
<a class="jxr_linenumber" name="110" href="#110">110</a> <em class="jxr_javadoccomment">     *            Channel into which we can write our request</em>
<a class="jxr_linenumber" name="111" href="#111">111</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="112" href="#112">112</a>     @Override
<a class="jxr_linenumber" name="113" href="#113">113</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../../../org/jboss/netty/channel/ChannelFuture.html">ChannelFuture</a> handshake(<a href="../../../../../../../org/jboss/netty/channel/Channel.html">Channel</a> channel) {
<a class="jxr_linenumber" name="114" href="#114">114</a>         <em class="jxr_comment">// Make keys</em>
<a class="jxr_linenumber" name="115" href="#115">115</a>         <strong class="jxr_keyword">int</strong> spaces1 = WebSocketUtil.randomNumber(1, 12);
<a class="jxr_linenumber" name="116" href="#116">116</a>         <strong class="jxr_keyword">int</strong> spaces2 = WebSocketUtil.randomNumber(1, 12);
<a class="jxr_linenumber" name="117" href="#117">117</a> 
<a class="jxr_linenumber" name="118" href="#118">118</a>         <strong class="jxr_keyword">int</strong> max1 = Integer.MAX_VALUE / spaces1;
<a class="jxr_linenumber" name="119" href="#119">119</a>         <strong class="jxr_keyword">int</strong> max2 = Integer.MAX_VALUE / spaces2;
<a class="jxr_linenumber" name="120" href="#120">120</a> 
<a class="jxr_linenumber" name="121" href="#121">121</a>         <strong class="jxr_keyword">int</strong> number1 = WebSocketUtil.randomNumber(0, max1);
<a class="jxr_linenumber" name="122" href="#122">122</a>         <strong class="jxr_keyword">int</strong> number2 = WebSocketUtil.randomNumber(0, max2);
<a class="jxr_linenumber" name="123" href="#123">123</a> 
<a class="jxr_linenumber" name="124" href="#124">124</a>         <strong class="jxr_keyword">int</strong> product1 = number1 * spaces1;
<a class="jxr_linenumber" name="125" href="#125">125</a>         <strong class="jxr_keyword">int</strong> product2 = number2 * spaces2;
<a class="jxr_linenumber" name="126" href="#126">126</a> 
<a class="jxr_linenumber" name="127" href="#127">127</a>         String key1 = Integer.toString(product1);
<a class="jxr_linenumber" name="128" href="#128">128</a>         String key2 = Integer.toString(product2);
<a class="jxr_linenumber" name="129" href="#129">129</a> 
<a class="jxr_linenumber" name="130" href="#130">130</a>         key1 = insertRandomCharacters(key1);
<a class="jxr_linenumber" name="131" href="#131">131</a>         key2 = insertRandomCharacters(key2);
<a class="jxr_linenumber" name="132" href="#132">132</a> 
<a class="jxr_linenumber" name="133" href="#133">133</a>         key1 = insertSpaces(key1, spaces1);
<a class="jxr_linenumber" name="134" href="#134">134</a>         key2 = insertSpaces(key2, spaces2);
<a class="jxr_linenumber" name="135" href="#135">135</a> 
<a class="jxr_linenumber" name="136" href="#136">136</a>         byte[] key3 = WebSocketUtil.randomBytes(8);
<a class="jxr_linenumber" name="137" href="#137">137</a> 
<a class="jxr_linenumber" name="138" href="#138">138</a>         ByteBuffer buffer = ByteBuffer.allocate(4);
<a class="jxr_linenumber" name="139" href="#139">139</a>         buffer.putInt(number1);
<a class="jxr_linenumber" name="140" href="#140">140</a>         byte[] number1Array = buffer.array();
<a class="jxr_linenumber" name="141" href="#141">141</a>         buffer = ByteBuffer.allocate(4);
<a class="jxr_linenumber" name="142" href="#142">142</a>         buffer.putInt(number2);
<a class="jxr_linenumber" name="143" href="#143">143</a>         byte[] number2Array = buffer.array();
<a class="jxr_linenumber" name="144" href="#144">144</a> 
<a class="jxr_linenumber" name="145" href="#145">145</a>         byte[] challenge = <strong class="jxr_keyword">new</strong> byte[16];
<a class="jxr_linenumber" name="146" href="#146">146</a>         System.arraycopy(number1Array, 0, challenge, 0, 4);
<a class="jxr_linenumber" name="147" href="#147">147</a>         System.arraycopy(number2Array, 0, challenge, 4, 4);
<a class="jxr_linenumber" name="148" href="#148">148</a>         System.arraycopy(key3, 0, challenge, 8, 8);
<a class="jxr_linenumber" name="149" href="#149">149</a>         expectedChallengeResponseBytes = WebSocketUtil.md5(ChannelBuffers.wrappedBuffer(challenge));
<a class="jxr_linenumber" name="150" href="#150">150</a> 
<a class="jxr_linenumber" name="151" href="#151">151</a>         <em class="jxr_comment">// Get path</em>
<a class="jxr_linenumber" name="152" href="#152">152</a>         URI wsURL = getWebSocketUrl();
<a class="jxr_linenumber" name="153" href="#153">153</a>         String path = wsURL.getPath();
<a class="jxr_linenumber" name="154" href="#154">154</a>         <strong class="jxr_keyword">if</strong> (wsURL.getQuery() != <strong class="jxr_keyword">null</strong> &amp;&amp; wsURL.getQuery().length() &gt; 0) {
<a class="jxr_linenumber" name="155" href="#155">155</a>             path = wsURL.getPath() + '?' + wsURL.getQuery();
<a class="jxr_linenumber" name="156" href="#156">156</a>         }
<a class="jxr_linenumber" name="157" href="#157">157</a> 
<a class="jxr_linenumber" name="158" href="#158">158</a>         <strong class="jxr_keyword">if</strong> (path == <strong class="jxr_keyword">null</strong> || path.length() == 0) {
<a class="jxr_linenumber" name="159" href="#159">159</a>             path = <span class="jxr_string">"/"</span>;
<a class="jxr_linenumber" name="160" href="#160">160</a>         }
<a class="jxr_linenumber" name="161" href="#161">161</a> 
<a class="jxr_linenumber" name="162" href="#162">162</a>         <em class="jxr_comment">// Format request</em>
<a class="jxr_linenumber" name="163" href="#163">163</a>         <a href="../../../../../../../org/jboss/netty/handler/codec/http/HttpRequest.html">HttpRequest</a> request = <strong class="jxr_keyword">new</strong> <a href="../../../../../../../org/jboss/netty/handler/codec/http/DefaultHttpRequest.html">DefaultHttpRequest</a>(HttpVersion.HTTP_1_1, HttpMethod.GET, path);
<a class="jxr_linenumber" name="164" href="#164">164</a>         request.addHeader(Names.UPGRADE, Values.WEBSOCKET);
<a class="jxr_linenumber" name="165" href="#165">165</a>         request.addHeader(Names.CONNECTION, Values.UPGRADE);
<a class="jxr_linenumber" name="166" href="#166">166</a>         request.addHeader(Names.HOST, wsURL.getHost());
<a class="jxr_linenumber" name="167" href="#167">167</a> 
<a class="jxr_linenumber" name="168" href="#168">168</a>         <strong class="jxr_keyword">int</strong> wsPort = wsURL.getPort();
<a class="jxr_linenumber" name="169" href="#169">169</a>         String originValue = <span class="jxr_string">"http://"</span> + wsURL.getHost();
<a class="jxr_linenumber" name="170" href="#170">170</a>         <strong class="jxr_keyword">if</strong> (wsPort != 80 &amp;&amp; wsPort != 443) {
<a class="jxr_linenumber" name="171" href="#171">171</a>             <em class="jxr_comment">// if the port is not standard (80/443) its needed to add the port to the header.</em>
<a class="jxr_linenumber" name="172" href="#172">172</a>             <em class="jxr_comment">// See http://tools.ietf.org/html/rfc6454#section-6.2</em>
<a class="jxr_linenumber" name="173" href="#173">173</a>             originValue = originValue + ':' + wsPort;
<a class="jxr_linenumber" name="174" href="#174">174</a>         }
<a class="jxr_linenumber" name="175" href="#175">175</a>         request.addHeader(Names.ORIGIN, originValue);
<a class="jxr_linenumber" name="176" href="#176">176</a> 
<a class="jxr_linenumber" name="177" href="#177">177</a>         request.addHeader(Names.SEC_WEBSOCKET_KEY1, key1);
<a class="jxr_linenumber" name="178" href="#178">178</a>         request.addHeader(Names.SEC_WEBSOCKET_KEY2, key2);
<a class="jxr_linenumber" name="179" href="#179">179</a>         String expectedSubprotocol = getExpectedSubprotocol();
<a class="jxr_linenumber" name="180" href="#180">180</a>         <strong class="jxr_keyword">if</strong> (expectedSubprotocol != <strong class="jxr_keyword">null</strong> &amp;&amp; expectedSubprotocol.length() != 0) {
<a class="jxr_linenumber" name="181" href="#181">181</a>             request.addHeader(Names.SEC_WEBSOCKET_PROTOCOL, expectedSubprotocol);
<a class="jxr_linenumber" name="182" href="#182">182</a>         }
<a class="jxr_linenumber" name="183" href="#183">183</a> 
<a class="jxr_linenumber" name="184" href="#184">184</a>         <strong class="jxr_keyword">if</strong> (customHeaders != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="185" href="#185">185</a>             <strong class="jxr_keyword">for</strong> (Map.Entry&lt;String, String&gt; e: customHeaders.entrySet()) {
<a class="jxr_linenumber" name="186" href="#186">186</a>                 request.addHeader(e.getKey(), e.getValue());
<a class="jxr_linenumber" name="187" href="#187">187</a>             }
<a class="jxr_linenumber" name="188" href="#188">188</a>         }
<a class="jxr_linenumber" name="189" href="#189">189</a> 
<a class="jxr_linenumber" name="190" href="#190">190</a>         <em class="jxr_comment">// Set Content-Length to workaround some known defect.</em>
<a class="jxr_linenumber" name="191" href="#191">191</a>         <em class="jxr_comment">// See also: http://www.ietf.org/mail-archive/web/hybi/current/msg02149.html</em>
<a class="jxr_linenumber" name="192" href="#192">192</a>         request.setHeader(Names.CONTENT_LENGTH, key3.length);
<a class="jxr_linenumber" name="193" href="#193">193</a>         request.setContent(ChannelBuffers.copiedBuffer(key3));
<a class="jxr_linenumber" name="194" href="#194">194</a> 
<a class="jxr_linenumber" name="195" href="#195">195</a>         <strong class="jxr_keyword">final</strong> <a href="../../../../../../../org/jboss/netty/channel/ChannelFuture.html">ChannelFuture</a> handshakeFuture = <strong class="jxr_keyword">new</strong> <a href="../../../../../../../org/jboss/netty/channel/DefaultChannelFuture.html">DefaultChannelFuture</a>(channel, false);
<a class="jxr_linenumber" name="196" href="#196">196</a>         <a href="../../../../../../../org/jboss/netty/channel/ChannelFuture.html">ChannelFuture</a> future = channel.write(request);
<a class="jxr_linenumber" name="197" href="#197">197</a> 
<a class="jxr_linenumber" name="198" href="#198">198</a>         future.addListener(<strong class="jxr_keyword">new</strong> <a href="../../../../../../../org/jboss/netty/channel/ChannelFutureListener.html">ChannelFutureListener</a>() {
<a class="jxr_linenumber" name="199" href="#199">199</a>             <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> operationComplete(<a href="../../../../../../../org/jboss/netty/channel/ChannelFuture.html">ChannelFuture</a> future) {
<a class="jxr_linenumber" name="200" href="#200">200</a>                 <a href="../../../../../../../org/jboss/netty/channel/ChannelPipeline.html">ChannelPipeline</a> p = future.getChannel().getPipeline();
<a class="jxr_linenumber" name="201" href="#201">201</a>                 p.replace(HttpRequestEncoder.<strong class="jxr_keyword">class</strong>, <span class="jxr_string">"ws-encoder"</span>, <strong class="jxr_keyword">new</strong> WebSocket00FrameEncoder());
<a class="jxr_linenumber" name="202" href="#202">202</a> 
<a class="jxr_linenumber" name="203" href="#203">203</a>                 <strong class="jxr_keyword">if</strong> (future.isSuccess()) {
<a class="jxr_linenumber" name="204" href="#204">204</a>                     handshakeFuture.setSuccess();
<a class="jxr_linenumber" name="205" href="#205">205</a>                 } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="206" href="#206">206</a>                     handshakeFuture.setFailure(future.getCause());
<a class="jxr_linenumber" name="207" href="#207">207</a>                 }
<a class="jxr_linenumber" name="208" href="#208">208</a>             }
<a class="jxr_linenumber" name="209" href="#209">209</a>         });
<a class="jxr_linenumber" name="210" href="#210">210</a> 
<a class="jxr_linenumber" name="211" href="#211">211</a>         <strong class="jxr_keyword">return</strong> handshakeFuture;
<a class="jxr_linenumber" name="212" href="#212">212</a>     }
<a class="jxr_linenumber" name="213" href="#213">213</a> 
<a class="jxr_linenumber" name="214" href="#214">214</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="215" href="#215">215</a> <em class="jxr_javadoccomment">     * &lt;p&gt;</em>
<a class="jxr_linenumber" name="216" href="#216">216</a> <em class="jxr_javadoccomment">     * Process server response:</em>
<a class="jxr_linenumber" name="217" href="#217">217</a> <em class="jxr_javadoccomment">     * &lt;/p&gt;</em>
<a class="jxr_linenumber" name="218" href="#218">218</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="219" href="#219">219</a> <em class="jxr_javadoccomment">     * &lt;pre&gt;</em>
<a class="jxr_linenumber" name="220" href="#220">220</a> <em class="jxr_javadoccomment">     * HTTP/1.1 101 WebSocket Protocol Handshake</em>
<a class="jxr_linenumber" name="221" href="#221">221</a> <em class="jxr_javadoccomment">     * Upgrade: WebSocket</em>
<a class="jxr_linenumber" name="222" href="#222">222</a> <em class="jxr_javadoccomment">     * Connection: Upgrade</em>
<a class="jxr_linenumber" name="223" href="#223">223</a> <em class="jxr_javadoccomment">     * Sec-WebSocket-Origin: <a href="http://example.com" target="alexandria_uri">http://example.com</a></em>
<a class="jxr_linenumber" name="224" href="#224">224</a> <em class="jxr_javadoccomment">     * Sec-WebSocket-Location: ws://example.com/demo</em>
<a class="jxr_linenumber" name="225" href="#225">225</a> <em class="jxr_javadoccomment">     * Sec-WebSocket-Protocol: sample</em>
<a class="jxr_linenumber" name="226" href="#226">226</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="227" href="#227">227</a> <em class="jxr_javadoccomment">     * 8jKS'y:G*Co,Wxa-</em>
<a class="jxr_linenumber" name="228" href="#228">228</a> <em class="jxr_javadoccomment">     * &lt;/pre&gt;</em>
<a class="jxr_linenumber" name="229" href="#229">229</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="230" href="#230">230</a> <em class="jxr_javadoccomment">     * @param channel</em>
<a class="jxr_linenumber" name="231" href="#231">231</a> <em class="jxr_javadoccomment">     *            Channel</em>
<a class="jxr_linenumber" name="232" href="#232">232</a> <em class="jxr_javadoccomment">     * @param response</em>
<a class="jxr_linenumber" name="233" href="#233">233</a> <em class="jxr_javadoccomment">     *            HTTP response returned from the server for the request sent by beginOpeningHandshake00().</em>
<a class="jxr_linenumber" name="234" href="#234">234</a> <em class="jxr_javadoccomment">     * @throws WebSocketHandshakeException</em>
<a class="jxr_linenumber" name="235" href="#235">235</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="236" href="#236">236</a>     @Override
<a class="jxr_linenumber" name="237" href="#237">237</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> finishHandshake(<a href="../../../../../../../org/jboss/netty/channel/Channel.html">Channel</a> channel, <a href="../../../../../../../org/jboss/netty/handler/codec/http/HttpResponse.html">HttpResponse</a> response) {
<a class="jxr_linenumber" name="238" href="#238">238</a>         <strong class="jxr_keyword">final</strong> <a href="../../../../../../../org/jboss/netty/handler/codec/http/HttpResponseStatus.html">HttpResponseStatus</a> status = <strong class="jxr_keyword">new</strong> <a href="../../../../../../../org/jboss/netty/handler/codec/http/HttpResponseStatus.html">HttpResponseStatus</a>(101, <span class="jxr_string">"WebSocket Protocol Handshake"</span>);
<a class="jxr_linenumber" name="239" href="#239">239</a> 
<a class="jxr_linenumber" name="240" href="#240">240</a>         <strong class="jxr_keyword">if</strong> (!response.getStatus().equals(status)) {
<a class="jxr_linenumber" name="241" href="#241">241</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../../org/jboss/netty/handler/codec/http/websocketx/WebSocketHandshakeException.html">WebSocketHandshakeException</a>(<span class="jxr_string">"Invalid handshake response status: "</span> + response.getStatus());
<a class="jxr_linenumber" name="242" href="#242">242</a>         }
<a class="jxr_linenumber" name="243" href="#243">243</a> 
<a class="jxr_linenumber" name="244" href="#244">244</a>         String upgrade = response.getHeader(Names.UPGRADE);
<a class="jxr_linenumber" name="245" href="#245">245</a>         <strong class="jxr_keyword">if</strong> (!Values.WEBSOCKET.equals(upgrade)) {
<a class="jxr_linenumber" name="246" href="#246">246</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../../org/jboss/netty/handler/codec/http/websocketx/WebSocketHandshakeException.html">WebSocketHandshakeException</a>(<span class="jxr_string">"Invalid handshake response upgrade: "</span>
<a class="jxr_linenumber" name="247" href="#247">247</a>                     + upgrade);
<a class="jxr_linenumber" name="248" href="#248">248</a>         }
<a class="jxr_linenumber" name="249" href="#249">249</a> 
<a class="jxr_linenumber" name="250" href="#250">250</a>         String connection = response.getHeader(Names.CONNECTION);
<a class="jxr_linenumber" name="251" href="#251">251</a>         <strong class="jxr_keyword">if</strong> (!Values.UPGRADE.equals(connection)) {
<a class="jxr_linenumber" name="252" href="#252">252</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../../org/jboss/netty/handler/codec/http/websocketx/WebSocketHandshakeException.html">WebSocketHandshakeException</a>(<span class="jxr_string">"Invalid handshake response connection: "</span>
<a class="jxr_linenumber" name="253" href="#253">253</a>                     + connection);
<a class="jxr_linenumber" name="254" href="#254">254</a>         }
<a class="jxr_linenumber" name="255" href="#255">255</a> 
<a class="jxr_linenumber" name="256" href="#256">256</a>         <a href="../../../../../../../org/jboss/netty/buffer/ChannelBuffer.html">ChannelBuffer</a> challenge = response.getContent();
<a class="jxr_linenumber" name="257" href="#257">257</a>         <strong class="jxr_keyword">if</strong> (!challenge.equals(expectedChallengeResponseBytes)) {
<a class="jxr_linenumber" name="258" href="#258">258</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../../org/jboss/netty/handler/codec/http/websocketx/WebSocketHandshakeException.html">WebSocketHandshakeException</a>(<span class="jxr_string">"Invalid challenge"</span>);
<a class="jxr_linenumber" name="259" href="#259">259</a>         }
<a class="jxr_linenumber" name="260" href="#260">260</a> 
<a class="jxr_linenumber" name="261" href="#261">261</a>         String subprotocol = response.getHeader(Names.SEC_WEBSOCKET_PROTOCOL);
<a class="jxr_linenumber" name="262" href="#262">262</a>         setActualSubprotocol(subprotocol);
<a class="jxr_linenumber" name="263" href="#263">263</a> 
<a class="jxr_linenumber" name="264" href="#264">264</a>         setHandshakeComplete();
<a class="jxr_linenumber" name="265" href="#265">265</a> 
<a class="jxr_linenumber" name="266" href="#266">266</a>         channel.getPipeline().get(HttpResponseDecoder.<strong class="jxr_keyword">class</strong>).replace(<span class="jxr_string">"ws-decoder"</span>,
<a class="jxr_linenumber" name="267" href="#267">267</a>                 <strong class="jxr_keyword">new</strong> WebSocket00FrameDecoder(getMaxFramePayloadLength()));
<a class="jxr_linenumber" name="268" href="#268">268</a>     }
<a class="jxr_linenumber" name="269" href="#269">269</a> 
<a class="jxr_linenumber" name="270" href="#270">270</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> String insertRandomCharacters(String key) {
<a class="jxr_linenumber" name="271" href="#271">271</a>         <strong class="jxr_keyword">int</strong> count = WebSocketUtil.randomNumber(1, 12);
<a class="jxr_linenumber" name="272" href="#272">272</a> 
<a class="jxr_linenumber" name="273" href="#273">273</a>         <strong class="jxr_keyword">char</strong>[] randomChars = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">char</strong>[count];
<a class="jxr_linenumber" name="274" href="#274">274</a>         <strong class="jxr_keyword">int</strong> randCount = 0;
<a class="jxr_linenumber" name="275" href="#275">275</a>         <strong class="jxr_keyword">while</strong> (randCount &lt; count) {
<a class="jxr_linenumber" name="276" href="#276">276</a>             <strong class="jxr_keyword">int</strong> rand = (<strong class="jxr_keyword">int</strong>) (Math.random() * 0x7e + 0x21);
<a class="jxr_linenumber" name="277" href="#277">277</a>             <strong class="jxr_keyword">if</strong> (0x21 &lt; rand &amp;&amp; rand &lt; 0x2f || 0x3a &lt; rand &amp;&amp; rand &lt; 0x7e) {
<a class="jxr_linenumber" name="278" href="#278">278</a>                 randomChars[randCount] = (<strong class="jxr_keyword">char</strong>) rand;
<a class="jxr_linenumber" name="279" href="#279">279</a>                 randCount += 1;
<a class="jxr_linenumber" name="280" href="#280">280</a>             }
<a class="jxr_linenumber" name="281" href="#281">281</a>         }
<a class="jxr_linenumber" name="282" href="#282">282</a> 
<a class="jxr_linenumber" name="283" href="#283">283</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; count; i++) {
<a class="jxr_linenumber" name="284" href="#284">284</a>             <strong class="jxr_keyword">int</strong> split = WebSocketUtil.randomNumber(0, key.length());
<a class="jxr_linenumber" name="285" href="#285">285</a>             String part1 = key.substring(0, split);
<a class="jxr_linenumber" name="286" href="#286">286</a>             String part2 = key.substring(split);
<a class="jxr_linenumber" name="287" href="#287">287</a>             key = part1 + randomChars[i] + part2;
<a class="jxr_linenumber" name="288" href="#288">288</a>         }
<a class="jxr_linenumber" name="289" href="#289">289</a> 
<a class="jxr_linenumber" name="290" href="#290">290</a>         <strong class="jxr_keyword">return</strong> key;
<a class="jxr_linenumber" name="291" href="#291">291</a>     }
<a class="jxr_linenumber" name="292" href="#292">292</a> 
<a class="jxr_linenumber" name="293" href="#293">293</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> String insertSpaces(String key, <strong class="jxr_keyword">int</strong> spaces) {
<a class="jxr_linenumber" name="294" href="#294">294</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; spaces; i++) {
<a class="jxr_linenumber" name="295" href="#295">295</a>             <strong class="jxr_keyword">int</strong> split = WebSocketUtil.randomNumber(1, key.length() - 1);
<a class="jxr_linenumber" name="296" href="#296">296</a>             String part1 = key.substring(0, split);
<a class="jxr_linenumber" name="297" href="#297">297</a>             String part2 = key.substring(split);
<a class="jxr_linenumber" name="298" href="#298">298</a>             key = part1 + ' ' + part2;
<a class="jxr_linenumber" name="299" href="#299">299</a>         }
<a class="jxr_linenumber" name="300" href="#300">300</a> 
<a class="jxr_linenumber" name="301" href="#301">301</a>         <strong class="jxr_keyword">return</strong> key;
<a class="jxr_linenumber" name="302" href="#302">302</a>     }
<a class="jxr_linenumber" name="303" href="#303">303</a> 
<a class="jxr_linenumber" name="304" href="#304">304</a> }
</pre>
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